Adding HTTPS Canonical URL Link — how do I use canonical link? What is canonical link in SEO? What is link rel canonical? Do I need a canonical tag? How do you implement canonical tags? Should every page have a canonical tag? What is canonical issues SEO? Canonical URL allows you to tell the search engines that all your URLs which looks similar are actually referred to the same link. By making use of the canonical link, you will definitely be going to solve the duplicate content issue. All those referred links are nothing but your website page. But to know the search engine about the authentic URL or link, every web developer needs to add canonical URL link in the HTML body of each page. Just follow below steps to add the canonical link in your website HTML Template.